Process of treating grains.



- To all whom it may concern:

; mash s'rA'r-as ADOLPHJAEGER, OF JACKSON, MISSOURI,

ONE-HUNDREDTHS TO ONE-HUNDREDTHS TO HARRY PROCESS OF TREATING GRAINS.

Applicationflled February Be it known that I, ABoLrH Janeen, a

citizen of the United States, residing at Jackson, in the county of CapeGirardeau and State of Missouri, have invented oer.-

tain new and useful Improvements in Processes of Treating Grains, ofwhich the following is a specification.

This invention relates to process of treating grain of any kind, beingexemplified in the present specification in'its application to wheatpreliminary to its formation:

into flour. v

The main general object of the invention is to provide an. improvedprocess whereby the moisture in the grain may be extracted,

onions removed or entirely deodorized and whereby a finer, whiterproduct my be secured.

Toward the accomplishment of these objects, my invention contemplatesthe extraction of moisture and pigment-producing oils from the grain byan artificialsweating process which is more rapid, more thorough, andwhich does not produce any unhealthful efiects observed in other methodsinvolving the use of electricity and chemicals in a way which isforbidden by the I out properties.

. wheat crops,

gated milling rolls United States Government.

In processes in vogue at the present day, considerable difiiculty hasbeen experience in the manufacture of fine reason of the presence in thewheat received at the thresher of ever increasing proportions of wildonions, by which-the corrubecome clogged, with the result that saidrollsare very inefiiciently operated. Furthermore, these onions give upan undesirable amount of moisture, besides producing a very decided andundesirable odor which is immediately absorbed by'the ,flour by reasonof its high absorb- There is, therefore, at ,the present-time in somesections of the country, large quantities of flour manufactured whichare not up to the standard of quality which they should reach. A furtherdifiiculty resides in the fact that under present conditions, the largepart -ofv the wheat which is sent to the miller, is not subjected to thesweating process which in former times it received while lying in thestack. Especially is this the case with winter making it imperative forthe Specification of Letters Patent.

d tends substantially white flour by.

nssrenon or 'rWnNrx-rwo AND ONE-HALF ARTHUR o. xmenr AND TWENTY-TWO ANDonn-nm' A. KNIGHT, BOTH or ST. LOUIS,.MISSOUBI.

" v miller to immediately subject wheat to a lengthy dryingprocess-involving continuous agitation in a current of a r certalnincipient changes which, if theyoccur, finally result in thediscoloration of the flour product.

p The drawing represents diagrammatically the construction, andarrangement of parts in a plant [treatment of wheat.

In this drawing, the. grain berries together with thevwild onions (setsas well as seeds). I are conveyed to a separator 1 by means of a'tubular conveyer-Q, the discharge 3 from, which is controlled by a gatevalve veyer 2 leads from a source of supply into 7 which the grain,.onions, etc., have been dumped inthe condition in which they arereceived from the farmer. In the separator 1, such foreign matter as bigpieces of heads, chaff, dust, strings, nails and the like are removed,the grain berries along .with the. onion seeds being delivered through afunnel 4 into a hopper 5 in the top of a steaming tank 6, to which steamis delivered through a steam pipe 7 Within the steaming tank 6 isdisposed a cylindrical screen of wire gauze or the like which extheentire length of said tank but is provided adjacent the lower endthereof with a closed cylindrical Wall 8 to provide a trough '9 forcondensed steam which collectsat the bottom of the tank, the bottom ofsaid tank being for this purpose contracted as shown, and a drain cook10 provided for leading off the water of condensation. A tubularconveyer 11 depends from the tank 6 and an airtight gate valve 12 isprovided therein-for retaining the grain within the tank 6 until thesteam-' an air-tight gate valve 16. Within the vacuum tank 13 is a wiremesh cylindrical screen'l'? within which the grain and onion berries areheld. In order to provide means for producing a vacuum with1n the tank13 a pipe 18 connects saidtank with a pumpv Patented Jane, 1916. 4,1911.sen 1 no.eoe,4es.

to prevent j forrcarrying out mynnq proved process in its application tothe 3 of any suitable construction. Saidfconing engine 19, said pipebeing controlled by a three-way valve 20 whereby when the tank 18 isclosed to said pipe, air may be admitted to the engine 19 to ease theload thereon. Suitable means for heating the grain and onions within thescreen 17 may be provided by a steam or hot water pipe 21 which ispreferably formed into a coil 22 within the tank 13 around the screen17. In order to facilitate the bleaching action which takes place withinthe vacuum chamber 13, any means for producing strong lighting effectsmay be disposed about the screen 17, such apparatus being represented at23 as receiving power by electric wires 24. After the grain and berrieshave been subjected to this dehydrating bleaching ac-' tion, the massmay be discharged into a stock hopper 25 which discharges in turn into ascrubbing mill 26 of any suitable well known construction, after whichit passes into a scouring or brush machine 2? to be dischargeddownwardly into a stock hopper 28 from which the dehydrated, bleachedand scoured grain berries may be conveyed to the grinding rolls (notshown on the drawings).

As the mixed onions and grain berries pass downwardly from the tanks 6and 13, the successive treatments by steam and vacuum thoroughlydeodorize the onions, while the vacuum makes the onions perfectly dryand very frangible. The result is that when the mass of grain and onionsis passed through the scrubbing and securing v machines, the onions arebroken up into fine particles and removed by fans. While the onions maynot be totally eliminated in this upon the final product of flour.

manner, what small proportion thereof remains in the mass will bethoroughly deodorized and produce no appreciable efiect As a re sult,the grain berries delivered to the cor rugated rolls will be perfectlydry and free from foreign matter which clogs the rolls, and moreoverthere will be no odor-produclng' agency in the mass. Furthermore, I haveascertained that the preliminary bleaching of the grain berries which issecured by their passage through the steam and vacuum tanks, produces afine white flour after the grain berries have been ground in the rolls,such flour being fully as white as that produced by chemical means byheretofore forbidden methods.

The apparatus whereby the hereinbefore described process is carried out,is claimed in my co-pending application, Serial Number 644,794, whichwas filed upon August 18, 1911.

What I claim is: v

1. The process of treating grain adul terated with onions which consistsin dehydrating the mass in a vacuum before the onions are broken, and insubsequently breaking up and removing the dried onions.

2. The process of treating grain which consists in subjecting the grainto a vacuum and in heating said grain while in the vacuum withoutintroducing a vacuumbreaking medium.'

3. The process consisting in subjecting a mass of grain adulterated withwild onions to a steaming action and in subsequently dehydrating themass in a "acuum until the onions are deodorized.

4:. The process consisting in subjecting a mass of soil productsadulterated with odoriferous impurities to dehydration in a yatuum untilsaid impurities are deodorize 5. The process consisting in subjecting aterated with onions which consists in subjecting the mass in the form inwhich it is received from the fields to dehydration in a vacuum, and inremoving the dried onions subsequent to the dehydration of said mass.

8. The process of treating grain which consists in steaming the unhulledgrain to render the hulls thereof pervious and subquently subjectingsaid unhulled grain to a dry heat in a vacuum to expel the volatileconstituents and subsequently theretoto render said hulls impervious.

9. The process of treating grain which consists in steaming the grainberries to render the hulls thereof pervious and for diluting the colorgiving constituents within the berries and in dehydrating said grainberries in the presence of a bleaching light.

10. The process of treating grain which consists in steaming the grainberries to render the hullsthereof pervious and for dilu ing the colorgiving constituents within the berries and in dehydrating said grainberries in a Vacuum in the presence of a bleach ing light. ADOLEPHJAEGER" In the presence of- J. B. Mnoown, H. G. FLETCHER.

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